Starting and selecting mechanism for automatic musical instruments



Marc'zll-ZS, l 193.0." c. H( GREEN STARTING AND SELECTING NECHANISM FORAUTOMATIC MusIcAL INSTRUMENTS Filed sept. 15, 1921 's sheets-sas; I

NTWN

March 25, 1930, QJHJGREEN 1,752,170

STARTING AND SELECTING MECHANISM FOR AUTOMATIC MUSICAL INSTRUMENTS Filedsept. 15. 1921 s Asheets-sham 2 March 25; 1930.- QH. GREEN l 17,752,170

STARTING vAND SELECTING MECHANISM FOR AUTOMATIC MUSICAL INSTRUMENTSFiled Sept. 15, 1921 5 Sheets-Sheet 3 M 505W, @ya

Patented Mar'. 25,4 1930 r ori/'rice CLIFFORD H. GREEN, F GRAND RAPIDS,MIGHXGAN STARTING AND SELECTING MECHANISM Application nled September Myinvention relates toimprovements in coin-controlled electricandmechanical means for actuating the motor circuit and selectivemechanism of an electrically drivenmechanical musical instrument, suchas an automatic pneumatic player piano, which is adapted to selectivelyplay a plurality of music rolls, the selection depen'ding upon the coinchute in which the coin is deposited.

The primary Vaim of this invention is to combine in a compact,comparatively simple and eilicient structure, easily installed in aplayer piano, for instance, means for mechanically actuating theelectric'switch for starting the motor and for controllingthe operationof said means and the selection of a roll or rolls to be played by theinsertion of a coin or coins in a series of coin-chutes; means forrestoring the respective coin controlled (selecting-means to normalposition after each roll vhas been selected; and means for` opening theswitch, and restoring all ofthe parts of said switch actuating means totheir normal positions when the'playing ci the selected roll or rollshas been completed.

It is well known to those skilled in the art, that automatic playerpianos, which play the music roll selected, usually include a rotatablemagazine'or otherwise operable frame carrying a plurality of rolls fromwhich the selection is made, these rolls, depending upon the coin slotin which the coin isvdeosited, being successively or otherwise roughtinto operative relation with the tracker-bar and fed over this bar inthe usual manner.

Heretofore, in musical instruments of this character having a pluralityof perforated music rolls, the roll that was selected could be played bydepositing a'suitahle coiiiin the selected coin-chute, ,which lrshuteconstitutedqthe initial element of the respective [trainV of mechanicaland electrical devices thatwere operably' connected with the selectedroll. The depositing of the coin was f adapted to closethe motor circuitand there.-

by set in motion the means that selected and operated said roll. Y Thisinvention relates more particularlyto v d15.0 the provision of astructure that embodies ronaurom'rrc ian-siena Irisrnurrmrrs it, i921'.serial no. 500,802.

common means operated b each train of coin controlled devices for eecting the closing and opening of the motor circuit, means that `areindividual to each of -said train of devices for selecting and startingthe playing of the particular roll or rolls desired, and means whereby aplurality of selections may be registered and the corresponding musicalnumbers played or re-played without interrupting the operation of theinstrument.

Other objects and advantages of my invention, together with a morecomplete understanding of the same, may be obtained from the followingdetailed description and the claims taken in connection with theaccompanying drawings, in which- Figure l is a top plan view of thestarting and selecting mechanism of my invention;

Figure 2 is a longitudinal sectional view taken on line 2, 2, Figure'1,looking in the direction indicated by the arrows;

Figure 3 is a vertical transverse sectional view taken on line 3, 3,Figure 2, looking in the direction indicated by the arrows;

Figure 4: is a View similar to Figure 3, taken on line 4f, 4:, ci Figure1, looking in the direction indicated b the arrows;

Figure 5 is a iagrammatic view, illustrating an operative connection ofthe starting and selecting mechanism with the motor circuitl and themusic roll selecting mechanism of a motor-driven automatic musicalinstrument, such as a'- pneumatically .operated player-piano; and

Figures 6, 7, 8, 9 and 10 age detail lviews of parts shown in Figure 5,the rst four being taken, respectively, upon the lines 6,-6, 7 7, 8-8and 9-,-9 of'said figure.

Referring more particularly to Figs. 1 to 4.- of the drawings, it willbe seen I 'have provided achannel-shaped supporting-frameQ aving abase-plate 5 to which, by means of brackets 6 and 7, thel vertical sidewalls 8 4 and 9, respectively, are secured.z For corilvenience indescribing,`the right hand end ci the base, as seen in Figure 2,` willbe termedf the forward end, andthe -left hand end referred to as therearward end. At

the forward end of the base 5, a bank or series 10 of coin chutes areprovided, consisting of a plurality of vertically disposed cast tubularchutes 1l that are rectangular in cross-section and have flared mouths12 at .their upper ends to receive a coin, and open lower ends fromwhich the coins deposited therein discharge into a suitable coinreceptacle (not shown). 'Each of the chutes l1 is provided withrearwardly and forwardly extending perforated ears 13 and 14 and, whensaid chutes are assembled, these ears are arranged in alignment toreceive transverse bolts yor rods 15 and16, respectively, which latterare anchored in the side Walls 8 and 9 by other suitable means, such asnuts 17, to retain said chutes in the po'sition shown in the drawings. y

A knife-blade switch for closing and opening the motor circuit is,preferably. secured to a suitable pedestal 18 of insulating material,and this pedestal is mounted on the base-plate 5 of the channel-shapedsupporting-frame midway between the side-walls 8 and 9 thereof. Thestationary terminal blades 20 and'21 of this switch are secured to saidpedestal and 'arranged in aligning pairs with their free ends upturnedand spaced apart, and the movable blade 24 of said switch is suitablysecured to and extends from one end of a rocker-bar 25 that is pivotedabout midway its-length, at 26, to a standard 27, mounted upon thebaseplate 5 ofthe supporting-frame. Suitable insulating washers andscrews 31 rigidly secure the blade 24 to bar 25, and a helical f spring32 connects said bar to the base Vof the standard and acts, whenpermitted to draw the movable blade into Contact with the stationaryblades of said switch.

Toggle mechanism is employed for maintaining the switch normally open inthe position shown in Figure 2. This mechanism comprises a rearwardlyprojecting lever 33,

secured by screw l34 to a tubular transverse shaft 35, which latterextends through wall 8 for connection with mechanism which willpresently be lreferred to more particularly.

The free end o-flever 33 has an upwardly extending link 38, pivotallyconnected thereto, and the upper'end of link 38 is in turn pivoted tolever 40, the forward end of which -is fulcrumed to the top of thestandard 27.

Lever 40 carries a pawl 42 which is pivoted thereto at 43 substantially,at its centerof length. This pawl 42 l-is provided with a notch 44 inthe rear corner of its lower end, and this notch is adapted to engage asuitable lug 45 that projects laterally from 'the rear end of the-rocker-bar 25. A helical' spring 46 connects lever 40 with base 5 ofthe supporting frame, for the purpose of normally maintaining the samein the position shown in Figure 2.

The upper end of the pawl 42 is pivotally connected at -4 8 to-alongitudinally extending rod 49, that. extends forwardly' and has itsopposite end connected to the upper end of an oscillating lever 50,which latter is pivoted at its center of length on a transverse bar 51,the ends of which bar are suitably mounted on the side-walls 8 and 9, atthe rear of the series of coin-chutes.

The lower portion of oscillating lever 50 engages and lies against lthetransverse horizontal portion 52 of a U-shaped motion-transmitting yokeor frame 53, the upper ends 54 of the vertical portions of which arebent laterally and journaled in side-walls 8 and 9. This yoke 53 servesto transmit motion from mechanism to be described, when a coin. isdeposited in one of the chutes, to lever 50 and, through the medium ofrod 49, said lever imparts motion to the pawl 42, to release the movableblade of the motor-switch and permit it to engage the. stationary bladesand close the switch.

'There is a transversely arranged series 55Y` As bestcomprises 1 plate56 pivotally mounted at 57 between .paced ears 58 that projectrearwardly from the lower portion of each of the chutes 11. The shape ofthis plate is roughly suggestive of a birds head inside view. Thepivotal pin of the detent intersects the eye of said head, and theforwardly projecting finger 60 represents the bill thereof and projectsthrough a vertically elongated slot in the lower portion of the rearwall of the respective coin-chute into the vpassage or throat of thechute. This finger is engaged by the coin as it gravitates downwards andits upper edge is curvedto facilitate the passage ofthe coin into thecoin receptacle (not shown) vA vertical arm 62 is formed on de tentplate 56 and extends vertically therefrom when the detent is in itsnormal position, as shown in Figure 2.

The detent serves to control both the switch releasing mechanism and theselective and restoring mechanism,these mechanisms being controlledthrough therelease of one of the bell-crank levers 63 (of which there isone los for each detent) mounted in parallel relation alike, adescription of but one will suflice.

The forwardly extending horizontal arm 67 of each bell-crank levernormally rests upon the vertical arm 62 of its complemental detent, andis maintained thereby against the tension of a helical spring 68, whichlatter is connected at one end to the depending arm 69 of said lever andhas its other end anchored to a transverse rod 70 fxedly secured to thetheir upper ends 79 that are engaged and de-` side walls 8 and 9 ofthesupporting-frame. These levers 63 are each provided with a vverticalextension 71 near their fulcrums, and

these extensions are each connected at 72 to a rearwardly extending rod73 that directly connects them to the selective and restoring mechanismto be presently described. lThe extension 71 of each lever 63 lies totherear of and against the horizontal portion 52 of the frame 53, so that,when one of the detentsis tripped by a coin, the extension 71, actingunder the'tension of the spring 68, will impart a. forward movement tothe lower end of lever 50 through the U-shaped frame and thus actuatethe pawl -42 to release the switch and permit the same to close.

The forward motion of the extension 71 causes rod 73 to move forward,which latter is connected to one of a plurality of depressible selectiveabutment pawls 74. These pawls correspond in construction and operation,are disposed in a transverse series, and are complemental in number andarrangement to the detents and bell-crank levers, and each of said pawls74 is pivoted at its lower end to one.end of a vertically oscillatablelever 75, the'opposite end of which is fulcrumed upon a stationarytransverse shaft 76 carried by side walls 8 and 9. The Shanks of thepawls 74 extend through equi-distant slots 77, arranged in atransversely mounted plate 78, the pawls having enlargedheads onpressed, in a manner to be described, by adjustable selective pins 80mounted in and extending radially from the drum 81, which latter ismounted upon a suitable revolvable shaft 82 yjournaled in the side Walls8 and 9 of the supporting frame. The drum is provided with acircumferential groove-81 to accommodate the passage of rod 49. Pins 80are arranged helically about the cylindrical .face of the drum, therebeing a pin corresponding to each detent. The pawls 74 and coactinglevers 75 are maintained at the upper limits of their movement, as shownbest in Figure 2, by helical springs 83 that connect levers 75 to a rod83a mounted in the side walls 8 and 9.v A transverse rod 84, mounted inthe side walls, limits the upward movement of the levers 75 and pawls74.

Immediately beneath the shaft 7 6 is a transverse rock-shaft 85 that isjournaled in side walls 8 and 9. Between its bearings said rock-shaft iscrank-shaped or U-shaped so as to provide a4 portion 86 that extendsbeneath the levers 75. This portion 86 is adapted to.

` be engaged and depressed by said levers when the latter are depressed,thus imparting partial rotation to said shaft 85: At one end an L-shapedarm 87 is carried kby shaft 85, and this arm is connected through a link88 with the upper end of a leverl 89 carried by and projecting from ashaft 90, which is journaled in the side wall 9 ofthe supporting frameand extends through tubular shaftv 35. A coil spring 91, anchored at 92to, base 5, is connected to said lever 89 and normally tends to maintainthe same in the vertical position shown in Figure 2.

Referring, now, to Figures 5 to L10, inelusive, wherein I have shown,diagrammatically and for illustrative purposes only, an operativeconnection of the just-described starting and selecting mechanism withthe motor circuit and the music roll selecting mechanism of amotor-driven, pneumatically operated, automatic musical instrument, itwill be seen that the frame 93 carries a pluralityof music rolls 94 andis rotatable by the central shaft 95 -to bring the different rollssuccessively, or otherwise, into position for operative relation, withthe tracker bar 96. Tracker bar 96 is supported bylinks 97--97 andbell-cranks 98-98 for reciprocative movement into and from operativeContact with the music sheets carried upon the several rolls 94. As' iswell known, in pneu.-- matically operated, automatic musical instrumentsof this character, the music sheets are provided with perforationsdesigned to cooperate with a row of apertures in the tracker bar, eachtracker bar aperture opening into a separate flexible tracker-tube, twoof which A*are shown at 99, throughl which the operations of therespective valve-actions of theinstrument are controlled by the openingand closing of the' tracker bar apertures as the perforated music sheetsare propelled thereacross. One of such valve-actions is shown at 100.

A pump 101 isdriven, by a belt 102, from an electric motor 103 toexhaust air, through a conduit 104, from the chamber 105 which is commonto all the valve-actions, such as 100, communicating therewith throughpassages and pin-hole-vents, suchfas 106 and 107, respectively. ,Eachvalve-action 100 comprises a double-ported valve-chamber'lOS, adiaphragm-chamber 109, an intermediate air-A chamber 110, a valve 111,and a diaphragmpneumatic 112. The outer port`113 of chamseription, Ihave shown ivalve-chamber 108i 25- lini connected, through a conduit115,- with-.a

power-pneumatic. 116, the oitlice of which ,will

be later described, but the control and o eration thereof 4 is justthesame as that o .any Y one of Athe usualacticn-pneumatica-gne@@3130 whichis shown at 117 with its connecting conduit 118. I have likewise showndiaphragm-chamber 109 connected, through a tube 119, with an atmosphericinlet valvedevice 120, theoice and operation of which will also be laterdescribed, but the admission and exclusion of atmospheric air to andfrom chamber 109 through this tube 119 controls the 'operation ofvalve-action 100 in'exactly the same manner as the various othervalveactions are controlled through their respective connections 99 withthe tracker bar apertures. lWhen air is exhausted from cham ber 105, itwill also be exhausted, through passage 106, from chamber 110 and,through pinhole-vent 107, from chamber 109 and,

l if the respective tube 119 is sealed against the admission ofatmospheric air, the degree of exhaust will be the same upon both sidesof diaphragm-pneumatic 112, and valve 111 will' be sucked tightly overvinner port 114, leaving outer port 113 open to admit atmospheric air tochamber 108, conduit 115, and power-pneumatic 116.

Considering, now, the usual music sheet control of theaction-pneumatics, when a music sheet perforation registers with acorresponding tracker bar aperture, atmospher- 1c air passestherethrough to the respectivev tracker-tube 99v and chamber 109 ingreater volume than can be withdrawn through pinhole-vent 107, therebyweakening the exhaust acting in chamber 109 upon the adjacent side ofdiaphragm-pneumatic 112. rl`he area of said diaphragm-pneumatic beinggreater than that of port 114, the exhaust in chamber'1104 instantlysucks the diaphragm-pneu# matie inwardly and thereby pushes the head ofvalve 111 away from inner port 114 and seats it over outer port 113.Action-pneumatic 117 is thereupon collapsed by the ex.

Vis instantly suckedv inwardly to vagain cover port 114 and open rt 113;and laction-pneumatic 117 is permltted to expand, all 1n the usual wellknown manner.

Drive-shaft 121 of pump 101 is connected, b sprocket-and-cham 'gearing122, with sliaft 123, which carries, fast thereupon, the

. driving member 124 of a clutch 125 to be presently described. Shaft123 is connected, throu h -bevel-gearin 126, shaft 127, and

sproc et-and-cha-in g aringI 128, with the driving member 129 of anotherclutch 130, l

the driven member 131 of which is connected,

by belt 132, with a large pulley 133 fast upon theV central shaft 95 ofthe rotatable musicroll-carrying frame 93. The connection ofdriving'member 129 with driven member 131 and, consequently, therotation of frame 93, is controlled by a lever 134 which is connected,by a tie-.rod 135, with bell-cranks,

98-'98, so that the driving of the rotatable music-roll-carrying frame93 will stop simultaneously with the movement of tracker bar 96 ltowardits operative position in contact with one of the music sheets carriedupon the several rolls 94 (see Fig. 10).

Clutch 125 comprises a driven member 136 which is fast upon a shaft 137and carries a spring-pressed, pivoted clutch-dog 138, the spring (notshown) acting to 4swing the clutch-'dog radially outward into the pathof several clutch-pins 139 carried upon the adjacent face of driving`member 124. A`

loose sleeve 140, having a beveled head 141, is mounted tol slide uponshaft/137 and is adjustably engaged by a control-lever 142, so that,when the lever is moved to slide the sleeve along the shaft awa fromdriving member 124, the beveled hea 141 will engage the heel ofclutch-dog 138 and swing the point thereof radially inward out of thepath vof clutch-pins 139.

Shaft'137 is connected, by worm-gearing 143, with a cam-shaft 144 havingfour cams` 145, 146, 147 and 148 tfixed thereupon. Cam 145 is providedwith two diametrically opposite shoulders 149 and 150 (see Fig. 6) whichengage with a stud 151 upon a link 152, which link is pivotallyconnected at 153 vwith control-lever 142 and is urged toward cam 145 bya spring 154. The end of control-lever 142 distant from the end-engaging loose sleeve 140 isprovided with a lateral slot 155 which istransfixed by a fixed pivot-stud 156,

and, at a point between said slotted end and' the pivotal connection153, said control-lever is engaged b a spring 157 which acts upon saidcontrolever 1n opposition to the action thereupon of link 152. Shaft 90of the starting and selecting mechanisml carries an arm 158, and themovable side Aof power-pneumatic. 116 carries an arm 159, eachof whicharms are arranged to act upon the free end of link v152 to move it awayfrom cam 145, in

opposition tothe action of spring 154, and e ect` the disengagementofstud 151 from either of the shoulders 149 or 150. As will be laterapparent, the actions of arms 158 and 159 are momentary.

Whenever the aforesald disengagement of i stud 1,51 from either ofthe-shoulders A149 or 150 occurs, sprn 157 is thereby permitted to swingcontrolever 142 upon pivot-stud 156 and slide loose sleeve 140 towarddriving member 124, moving beveled head 141 to allow clutch-dogv 138 toswing into the path of l clutch-pins' 139. This throwing in of clutch125 effects a half-turn of cam-shaft 144 and cam 145, at which point itis automatically thrown out again through the engagement of stud 151 bythe shoulder on cam 145 which is diametrically'opposite thereon to theone just disengaged. As this shoulder engages the stud and moves link152, it thereby effects the clutch-disengaging movement of the connectedcontrol-lever 142. Due to the frictionbetween clutch-dog 138 and theclutch-pin 139 engaged thereby, the slotted end of control-lever 142will be first moved, against the action ofspring 157, until the end ofthe slot 155 encounters pivot-stud 156,

upon which the control-lever will then pivotv and, upon its continuedmovement, the other end thereof will slide loose sleeve. 140 away fromdriving member 124, bring the beveled head 141 again into engagementwiththe heel of clutch-dog 138 and force the point thereof radiallyinward out of' engagement with the clutch-pin 139. This throwingout ofclutch `125 instantly stops the disengaging moveinoperative.

ment, and the arrangement of slot 1 55 is to insure proper clearancebetween the clutchdog and clutch-pins. The disengagement of clutch-dogand clutch-pin permits spring 157 to return the slottedend ofcontrol-lever 142 to its normal position, swinging it upon pivotalconnection 153 as far as the length of slot 155 will permit, and slidingloose sleeve 140 still further away from driving member 124, so that thepoint of clutch-dog 138 will be still further withdrawn from the path ofA clutch-pins 139.

Cam 146 is a single-drop cam (see Fig.l 7) which acts upon a projection160 on a lever 161, one end of which lever is pivotally fixed at 162 andthe other end connected, by a link 163, with an arm 164 fixed upontubular shaft 35. Cam, 147 is a smooth-faced eccentric (see Fig. 8)which acts upon one end-part of a rocker-lever 165', the oppositevend-part of which is arranged to operate a flap-valve 166 and thereby'control the admission and exclusion of atmospheric air to and from aconduit 167 which is connected with conduit 104. AWhen open, valve 166renders pump 101 ineffective to reduce the air-pressure in chamber 105,and valve-actions 100 will be Cam 148isy also a smooth-faced eccentric(see Fig. 9) and acts within a rectangular yoke 168 carried at one endof a tierod.169, the otherend of which is pivotally connected at 170with one of the bell-cranks 98-98. This cam 148 eiects the positivemovement, in eachdirection, of tracker barA with central shaft 95,whereby drum 81 is caused to operatel in synchronism with the rotatablemagazine or otherwise. operable frame 93 carrying the plurality of musicrolls 94, so that the mechanism of the particular coin chute in whichthe coin is deposited determines which pawl 74 will be depressed by itscomplementary pin on the drum 81 and which one of the plurality of musicrolls shall be played. Y

In operation when a coin is deposited in one of the coin chutes, forexample, that designated A, it trips th'e detent of the coin chute andreleases one of the bell-crank levers 63 complemental to said coinchute. This automatically imparts movement to the oscillating lever 50,which latter, in turn, trips the pawl 42 (through the medium of rod 49)and releases the switch blade, permitting the samel to close the motorcircuit 174 (see Fig. 5) and start the instrument.-. Electric motor 103now drives the pump 101 and the two driving members 124 and 129 of therespective clutches 125 and 130. At this initial stage of the operation,valve 166 is open and the pump is therefore ineffective, as previouslydescribed; clutch 125 is held thrown out of engagement; tracker bar 96is in retracted position, clear of music rolls 94 and their supportingframe 93; and. clutch 130 is engaged. Consequently, thev starting of theinstrument vfirst causes the rotation of the music-roll-carrying frame93 and the synchronous rotation of drum 81 in the direction of the arrowa, shown in Figure 2, and the rocking movement of the bell-crank lever63 automatically shifts the coacting selectiver pawl 74 into the path ofmovement of the complemental pin on-the drum. The drum rotates as theroll of music to be playedy is being moved into position, and when thesaid rollv nears its proper position for cooperation with the trackerbar, the pin on the drum engages the respective selective pawl of thecooperating set of selective mechanism and imparts motion to the shaft90 through shaft 85,

arm 87, link 88, and lever 89. The motion of the lshaft 90 swings arm158 (see Figs. 5 and 6) and presses lin `152 to disengage stud 151 fromshoulder 149, allowing spring 157 to swing control-lever 142 and therebythrowlever 40, and pawl 42 in the dotted line position shown in Figure2.Cam 147 releases its I pressure upon rocker-lever 165 sufiiciently toallow flap-valve 166 to closel and permit pump 101 to reduce theair-pressure'in chamber 105 for the actuation of valve-actions 100, andcam 148 acts upon rectangular yoke 168 to throw out clutch 130 and moveand hold tracker bar .96 in operative contact with the I sition, and, astracker bar 96 is moved into contact with the music sheet, valve-device120 is also permitted to move into contact therewith. Means Spot shown)for propelling the -music sheet is rought into operation at this 10time, and the instrument will play the tune represented by the selectedmusic roll in the usual manner. Simultaneously with the aforesaid motionof shaft 90, the bell-crank leverl 63 is restored to the position shownin full lines in Figure 2. This action is brought about by the action ofthe cam face 79a on the face of the pawl which bears against the forwardend wall of its complemental slot in the plate 78. This cam produces arearward 2g movement of the upper end of the pawl 74 as the pawl isdepressed and, pulling rearwardly u on the rod 73, raises the horizontalarm 67 ol) the bell crank lever'63, against the tension ofthe spring 68,to its normalposition shown in full lines in Figure 2. At the same timethe cam carries the head 79 of the pawl 74 out of the path of itscomplemental pin 8O on the drum 81. When the bell crank lever 63 hasbeen restored to normal position as just described, the oscillatinglever50 is ermitted to resume its normal position and ring the pawl 42 intoengagement with the rockerbar 25 of the switch by virtue of the lateralextension formed thereon. The weighted end 59 of thedetent 55 restoresthis part to -normal position, as shown `in Figure 2, immediately-thatthe horizontal arm 67 of the bell A crank is elevated suiliciently forthe vertical arm 62 of the detent to pass beneath the same.

'40- Just prior to the stopping of drum 81, the

depression of the abutment pawl 74 causes its withdrawal and releasefrom the complemental in 80 in the manner heretofore described, andp thepawl is'restored, by the action of the spring 83, to the position shownin full lines in Figure 2.l When the playing of the'selected roll hasbeen completed, a hole provided in the i res ective' music sheet movesinto registration wit the trailing finger 172 of valve-device 120 (seeFig. 10) whereupon valve 173 opens and admits atmospheric air to tube119, resulting in the collapse of power-pneumatic 116, in the mannerheretofore described. This collapse of power-pneumatic 116 acts, througharm 159, to press link 152 and disengage stud 151 from shoulder 150,andthe second halfrevolution and stopping of cam-fshaft 144 'is effectedin the same manner as that described `in connection with the firsthalf-revolution e0 thereof.` This second half-revolution of cams 146,147and 148,jreturnsY Gle parts actuated thereby vto their originalpositions. Cam 147 l i Y into their positions away. from music rolls 94After the first coin has been deposited and the playing of the desiredselection has begun, another coin may be deposited in the ysame chute,if desired, to effect the re-playing of the same selection. playing of aselection is an indication that the respective coin controlled selectingmechanism has been restored to its original position, since-thehereinbefore 'described depression, withdrawal, and restoration of aselective pawl 74 initiates the playing operation The beginning of theland simultaneously effects the restoration'and -re-latching of therespective coin controlled selecting mechanism. The deposit of a second'coin lin the same chute, after the playing of the respective selectionbegins, therefore acts as an initial operation of the respectiveselecting mechanism. p

It is tobe noted that coins may be deposited in any or all of theseveral chutes, thereby tripping any or all of the detents anddisplacing their respective pawls 7 4, 'and it follows that, when anumber of pawls are in such displaced position, the pawl first to beencountered by its complemental pin 80 in the rotation of drum 81 willeect the playing of the corresponding musical selection and therestoration of the respective selecting mechanism. So long as any of thepawls 74 remain in the. path of their complemental pins 80, thecorresponding bell-crank levers 63 willremain in tripped position andprevent the lever 50 from assuming its normal position, to the'eli'ectthat pawl 42 will miss lug 45 when the pawl is moved downwardly at thecompletion of the playing of a ioll.

The dillerent rolls will be played and the correspondin selectingmechanisms will be restored -in t e order in which the placed pawls 74,and it follows that a roll may not be immediately re-played if pawls forins 80 v encounter and depress the selective v disother selections arein displaced position. It

has been mentioned that the operation of a pawl includes its depression,withdrawal, release, and restoration (to the full-line position `shownin Fig. 2). If immediately displaced again, it would be necessary forthe drum to make a complete revolution in orderl to re-engagethe samepawl and repeat its 'operation and, if other pawls were in dislacedposition, they'would be encountered y their complemental pins beforesuch complete revolution of the drum could be effected. While a speciiicmechanical arrangement and adaption of the invention has been illus- Ltrated, and described, I reserve the right to employ the invention inother capacities and make minor changes therein within the spirit of theinvention and scope of the claims.

What I claim as new is z l. In a .controlling mechanism for motor drivenmusical instruments, an electric switch controlling the circuit to themotorfof said instrument, means normally acting to close said switch,means for holding said switch in open position, a motor driven member,coin controlled mechanism for releasing the switch holding means, meanscontrolled by the motor driven member for placing the switch holdingmeans in position to open the switch, and means forv actuating theholding means for opening the switch and stop-l ping the motor. f

2. In a controlling mechanism for motor driven musical instruments, anelectric switch controlling the circuitl to the motor of saidinstrument, means normally acting to close said switch, means forholding said. switch in open position, a motor driven member, coincontrolled mechanism for releasing the switch holding means, meanscontrolled by the motor driven member for placing the switch holdingmeans in. position to open the switch, and means tor actuating theholding means for opening the switch and stoppin the motor, togetherwith means operate by the motor driven member for causing the coincontrolled mechanism to be restoied to normal. v

3. In a controlling mechanism for motor operated musical instruments,the combination of a .switch for controlling the circuit of the motor,coin controlled. means for closing said switch, means for opening saidswitch which comprises in part a motor actuated member and a pawl movedthereby, and means actuated. by the pawl for restoring saidcoin-controlled means to normal position. I

4. In a controlling mechanism for motor operated musical instruments,the combination of a switch for controlling the circuit v of the motorof said. instrument, coin conn operated musical instruments, the

vtrolled mechanism for closing said switch, means for opening saidswitch comprising in part a motor operated rotatable element having.studs and pawls arranged to lie in the. path of said vstudsluponoperation of said p coin controlled mechanism, said pawls includingmeans whereby they lare automatically thrown out ofthe path of therespective studs and effect the restoration of said coin controlledmechanism to inoperative positi'on.

5. In a controlling mechanism formotor combination `of a switch forcontrolling the circuit of the motor of said instrument, coin con- 65trolled mechanism` for closing said switch,

means for opening' said switch comprising in part a rotatable motordriven element having radiating studs, .said coin controlled mechanismincluding coin actuated detents,

pawls adaptedy to be placed in the path of v I said studs lupon theactuation of said dev tents, whereby thev rotation of said element willpartially actuate 'said switch-opening means, and means controlled inthe movement of said pawls by said element for restoring said detents.

6. In a controlling mechanism for motor operated musical instruments,the combination of a switch for controlling the circuit of strumentadapted to play from a plurality of rolls to be selected, of a sprihgclosed switch in circuit of` the motor, selective coin controlleddetents, means controlled by said detents for releasing the switch toclosed position, selective control mechanism operated by the motor,comprising a revolving element provided with staggered pins and a seriesof abutment members co plemental to said detents, means for openi g theswitch operated in part by said selective control mechanism, and meansJfor permitting the detents to -assume normal osition.

' 8. The com ination with an electric motor for operating amechanicalmusical instrument adapted to play from a plurality of rollsto be selected, of a spring closed switch in circuit of the motor,selective coin controlled detents, means controlled by said de-. tentsfor releasing the switch to closed Aposition, selective controlmechanism operated by the motor, comprising a revolving elementprovidedwith staggered pins and a series of abutment memberscomplemental to said detents, means or opening the switch operated inpart by said selective control mechanism, and means directlyconnected-With and operable by said abutment members for permitting thedetents to assume normal position.

9. The combination with a mechanically operated musical instrument andan electric motor for driving the same, of a spring closed switch in themotor circuit, means for retaining saidswitch in open position, aplurality .of coin controlled detents, means connected with said detentsfor'actuating said switch retaining -means to release the switch toclosed position when a coin is deposited, a revolving element operatedby the motor and' having a plurality of projections complemental to saiddetents, a plurality of mov-- with, means connecting said abutment mem--bers directly withl said detents, and means for opening the switch alsoconnected with said abutment members.

10. The combination with a mechanically operated musical instrument andan electric motor for driving the same, of a spring closed switch in themotor circuit,.means for retaining said switch in open position, aplurality of coin controlled detents, means connected with said detentscollectively for actuating said switch retaining means to release theswitch to closed position when a coin is dethereon complemental to saiddetents, a. plurality/of movable abutment members complemental to saidprojections for selective engagement therewith, means selectively con.-

necting each detent to one. of said abutment members, and meansconnected with all of said abutment members collectively for opening theswitch. i l 11. .The combination with an electric motor foroperating amechanical'musical instrument adapted to play from a plurality of rollsto be selected, of'a spring closed switch in circuit with said motor,selective coin controlled detent means comprising a plurality of coinslots, each havin a coin-actuable detent therein, a pawl or maintainingthe switch in open position, means connecting said pawl with said detentmeans to actuate the pawl and release the switchto closed osit-ion whena coin is deposited, a rotata le.

member driven by the motor and provided with a plurality of selectiveprojections, a plurality of movable abutment members selectivelyoperable by said rojections, means connecting each of said a utmentmembers l with one of said detent means, andmeansfor opening thejswitchconnected through a loose connection with said abutment members.v

12. In controlling mechanism for an automatic musical instrument adaptedto'\play from a plurality of music rolls, the combination ofcoin-controlled means operating osit of a coin to start' t e operationof sai instrument and selectivel determine which of said rolls shall beemp oyed in the playing thereof, restoring means operating to restoresaid coin-controlled means to its original condition, and stopping meansoperating to stop the operation of said 'in- Y strument; said restoringmeans being auto- A pleted.

maticall operated at the time the selection of the esired roll shallhave' been accomplished, and said stopping means being automaticallyoperated at the time the employment of the selected roll shall have beencom- 13. In controlling mechanism for an automatic musical instrumentadapted to -play from a plurality of music rolls, the combinatlon ofcom-controlled means operating upon the deposit of a coin to start theoperv ation of said instrument and selectively determine which of saidrolls shall be played and said stopping means being automatically voperated after the playing of said roll.

14. In controlling mechanism for an automatic musical instrument adaptedto be controlled in operation by a plurality of music rolls, the Acombination of coin-controlled means operating upon the deposit of acoin .to start the operation of said instrument and selectivelydetermine which of said rolls shall be employed to control the operationthereof, meansoperating automatically upon the starting of theoperationof said instrument to effect the selection of the desired rolland to restore said coin-controlled. means to its original conditionuponthe effecting/of such selection, and means operating automaticallyupon the completion of the employment of the selected roll to stop theoperation of said instrument.

15. In controlling mechanism for an automatic musical instrument adaptedto play from a plurality of music rolls, the combination ofcoin-controlled means operating upon then deposit of a coin to start theoperation of said instrument and register the selection of one of vsaidrolls, means operating automatically upon the starting of the operationof said instrument to effect the employment of one of said rollsaccording to the registeredl selection and simultaneously restore voitthe selected roll to stop the operation of said instrument.

16. In controlling mechanism for an auto-,

matic musical instrument adapted to play from a plurality of musicrolls, the combilll() nation of coin-controlled means operating to startthe operation of said instrument and register the selection of one ofsaid rolls,

said means comprising a releasable detent released by the deposit ofv acoin and a selective element displaced by the release of said detent,'means operating automatically upon kt e starting of the operation ofsaid instrument to actuate said element and thereby ef- `fect theselectiony of onel of said rolls and the restoration of said elementandvsaid'de- A tent to their original positions, and means operatingautomatically after the completion of the'playing operation of saidinstrument.. i

to stop the operation thereof.A

nwsai'zoY release 'of said detent, means operating automatically uponthe starting of the operation of said instrument .to co-operate 'withsaid element in eiectmg the selection and playing of one of said rolls,

and to eiect the restoration of said element and said detent to theiroriginal pos1t1ons upon the effecting of such selection, and additionalmeans operating automatically after the playing of said roll to stop theof said instrument.

18. In controlling mechanism for an automatic musical instrument, thecombination of a plurality of coin slots, coin-controlled meansindividual to said slots operating upon the deposit of a coin in any ofsaid slots to start the operation of said instrument, means operationoperating automatically at diierent intermediate stages in the operationof said instrument to successively restore such of said coin-controlledmeans as have been operated` v to their original conditlon, and meansoperatin automatically to stop the operation of sald instrument at thefinal stage in the operation thereof after all of said coin-controlledmeans have been restored as aforesaid.

19. In controlling mechanism for an auto'- matic musical instrumentadaptedVv to play froma plurality of music rolls, the combination of aplurality of coin slots individual to each of said plurality of rolls,coin-controlled means individual to each of said plurality of slotsoperating upon the de ositof a coin in any of said slots to start t eoperation of said instrument and to register the selection of any ofsaid rolls, corresponding in num-` ber and identity to the slots inwhich coins have been deposited, means operating automatically upon thestarting of the operation of said instrument to successively effect theselection of the desired rolls according to the registered selectionsand to successively restore such ofsaid coin-controlled means as havebeen operated to their original condition upon the eiecting ofeachrespective selection, and means operating automatically to stop theoperation of said instrument at the final stage in the operationthereofv after all of said coin-controlled means have been re stored asaforesaid and after all of the selected rolls have been played. i

20. In controlling mechanism for an automatic musical instrument, thecombination, 4 with .startin 4nieans operating to start the operation oAsaid instrument, of releasable latching means acting upon release toeffect the operation of said starting means, restor` ing means operatingto eect the re-latching of said latching means, and stopping meansoperating to stop the operation of said inmatically operated at anintermediate stage j in the operation of saidinstrument, and saidstopping means being automatically operated at the final stage in theoperation of said instrument; and the operation of said restoring 'vmeans and said stopping means being separately controlled. l

21. In controlling mechanism for an automatic musical instrument adaptedto play from a plurality of music rolls, the` combination, with startingmeans operating to start the operation of said instrument, of releasablelatching means acting upon release to effect the operation of saidstarting means and selectively determine which ofl said rolls shall beemployed in the playing thereof, restoring ing o said latching means,and stopping means operating to stop the operation of said instrument;said restoring means being automatically operated at the time theselection means operating to eiect the re-latchof the desired roll'shall have been accom- -plished, and said stopping means being auto-`matically operated at the time the employment of the selected roll shallhave been completed. g

22. In controlling mechanism for an automatic musical instrument adaptedto play from a plurality of music rolls, the combination, with startingmeans operating to start able latching means acting uponI release `toeffect Athe operation of vsaid starting means and selectively determinewhich of said rolls shall be played thereupon, restoring means operatingto effect the re-latching of said latching means, and stopping 'meansoperating to stop the operation of said instrument; sa1d restoring meansbeing automaticall operated prior to the playing of the desire roll, andsaid stopping means being automatically operated after the playing ofsaid roll.

23. In controlling mechanism for an automatic musical instrument adaptedto be controlled in operationbya pluralityV of music` rolls, thecombination, with starting means. operating to start the operation vofsaid ins rument, of releasable latching means acting lupon release `toeiect the'operation of said ,starting means 1and selectively determine-tion of said instrument to effect the selection of the desired roll andthe re-latching of said *the operation of said instrument, of releaslatching means upon the eifecting of such selection, and means operatingautomatically n' -uponthe completion of the employment of strument; saidrestoringI means being auto- 70 l f 5.5 effect the restoration of saidelement and said 'register the selection of one of said rolls,

means operating' automatically upon the starting of the operation ofsaid instrument to effect the employment of one of said rolls accordingto the registered selection and simultaneously effect the re-latching ofsaid latching means, and means operating automatically upon thecompletion of the employment of the selected roll to stop the operationof said instrument.

25. In controlling mechanism for an automaticv musical instrumentadapted to :play from a plurality ofmusic rolls, the combination, withstarting means operating to start the operation of said instrument, ofreleasable latching means acting upon release to effect the operation ofsaid starting means and register the selection of one of said'rolls,said latching means comprising a releasable detent and a selectiveelement displaced by the release of said detent, means operating vautomaticall upon the starting of the operation of sai instrument toactuate said element and thereby elect the selection of one of saidrolls andthe restoration lof said element and said 'dtent `to theiroriginal positions, and means operating automatically after thecompletion of the employment of thev selected roll to stop-the operationof said instrument..

26. In controlling'mechanism for an automatic musical instrumentadaptedto play from a plurality ofrmusic rolls, the combination,'with startingnieansoperating to start `the o eration of said instrument, ofreleasable atching means 'actinupon release to effect the operation ofsai instrument and 'selectively' eieet the playing of one of said rollsthereupon, said latching means comprising a releasable detent and aselective' element displaced by the release of said detent, meansoperating automaticallyx upon the startingof the operation of saidinstrument to cooperate with said element in effecting the selection andplaying of one of said rolls,(and to detent to their original positionsupon Vthe means operating automatically after the playing of said rollto stop the operation of said instrument.

27. In controlling mechanism for an automatic musical instrument, thecombination, with starting means operatin to start the operation of saidinstrument, o a plurality of v the releasable latching means each actingupon release to effect the operation of said starting means, meansoperating automatically at different intermediate stages in theoperation of said instrument to successively efl'ect the relatching ofsuch of said latching means as have been released, and means operatingautomatically to stop the operation of said instrument at the linalstage in the operation thereof after all of said latching means havebeen re-latched.

28. In controlling mechanism for an automatic musicall instrumentadapted to play roma plurality-of music rolls, the combination, withstarting means operating to start the operation of said instrument, of aplurality of releasable latching means individual to each of saidplurality of rolls acting upon release to effect the operation of saidstarting means and to register the selection of any of said rolls,corresponding in number and identity to such of .said latching means ashave been released, means operating automatically upon the starting ofthe operation of said instrument to successively effect the selection ofthe desired rolls according to ,the registered selections and tosuccessively effect the re-latchingof the respective latches as eachsuch selection is 'eiected, and means operating automatically to stopthe operation of said instrument at the final stage in the operationthereof after all of said latching means have been re-latched asaforesaid' and after all of the selected rolls have been played.

29,l In a controlling mechanism for motor operated musical instruments,the combination of a switch for controlling the circuit of,

the motor of saidA instrument, a bodily movable latch for enga ing saidswitch to open the same, contro able means operated through theoperation of said instrument by`- 30. In a controlling mechanism forymotor operated musical instruments, the combination of a switch for.controlling the circuit of the motor of said instrument, a bodilymovable latch for engaging said switch to open same, controllable meansthrough the operation of said instrument by said motor for bodily movingsaid latch into and from switch-engaging position, and optionallyactuable means for controlling the engagement of said latch with saidswitch.l

31. In a controlling mechanism for motor operated musical instruments,the combination of a switch for controlling the circuit of operated nthe motor of said instrument, a bodily mov- Y able latch for engagingand openingsaid switch, controllable means operated through theoperation of said instrument by said motor for bodily moving said latchinto position to engage sait'switch and from said osition to open saidswitch, and options. y actuable means for controlling the engagement ofsaid latch with said switch.

In Witness whereof I have hereunto set my hand this 21st day of July,1921.

CLIFFORD GREEN.

